Raisins are made by spreading raisins on the threshing floor or hanging them in a cool room to dry. This process takes a long time, usually 1 month or more. Due to direct sunlight and long drying time, the color of raisins is generally dark. However, it only takes 15-20 days after soaking in drying accelerator, which greatly shortens the drying time, prevents grapes from growing mildew due to long-term humidity, and makes raisins more hygienic.

All raisins are picked and dried under natural conditions, so there will be some dust or sand on the surface of all raisins, including imported raisins. So it's best to simply handle it before eating.

Extended data:

Nutritional value of raisins;

1, blood Raisins contain a lot of iron. For people with iron deficiency anemia, it is a good thing not to take medicine to replenish blood. Generally speaking, women and children are the main population of anemia. You can eat a small handful every day and stick to it for a while.

2. Prevent tooth decay. Do you all think raisins are too sour to damage your teeth? The latest research shows that raisins contain several compounds which can effectively inhibit the growth of bacteria. In this way, eating raisins for a long time can also effectively prevent oral inflammation such as tooth decay.

3. Strong inside. A large amount of glucose in raisins has a health care effect on the human heart, which can increase the nutrition of myocardium and prevent the attack of heart diseases such as coronary heart disease.

4. Reduce blood fat. A handful of raisins a day can lower cholesterol and blood lipids.

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